Factors of 1681
The factors of 1681 are 1, 41, 1681. It has 3 factors.
Factors of 1681
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 1681 is a whole number that divides it with nothing left over. You only need to test the numbers up to √1681 ≈ 41.00; every one that divides gives a pair.
- 2
The factor pairs are listed in the table below. Together they give 3 factors.
- 3
Prime factorisation: keep dividing by the smallest prime that fits.
- 4
Add all the factors: 1 + 41 + 1681 = 1723. Without 1681 itself that is 42, so 1681 is a deficient number.
LaTeX source of the formulas on this page
\[ 1681 = 41^{2} \]Factor pairs of 1681
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 1681 | 1 × 1681 = 1681 |
| 41 | 41 | 41 × 41 = 1681 |
Questions
What are the factors of 1681?
The factors of 1681 are 1, 41, 1681. It has 3 factors.
What are the prime factors of 1681?
41. As a product: .
How many factors does 1681 have?
1681 has 3 factors (2 factor pairs, one of them 41 × 41).
What is the sum of the factors of 1681?
1723.
Is 1681 a prime number?
No. It is divisible by 41, so 1681 = 41 × 41.